Climate Overview
The climate in Marechal Deodoro is hot. The average annual temperature is 26°C and approximately 925mm of precipitation falls per year. Marechal Deodoro receives a notable amount of rainfall throughout the year, including during its driest month. Marechal Deodoro sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Marechal Deodoro has relatively stable temperatures year-round, staying within a 10°C range. The warmest month is March, when average highs reach 31°C and the mean temperature sits around 27°C. August is the coolest month, with minimum temperatures around 21°C and an average of 24°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows.
Precipitation
Marechal Deodoro is a moderately rainy area, receiving approximately 925mm of precipitation annually, which averages out to around 77mm per month. The wettest month is July, averaging 121mm of rainfall. May and June also tend to see above-average precipitation. The driest month is November, with just 34mm. That's 86mm less than July, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.
Wind
Marechal Deodoro is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is November, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.
Seasons
92 days until Spring
It is currently winter in Marechal Deodoro, which began on June 21, 2026. Marechal Deodoro sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in March at around 31°C, while the coldest stretch bottoms out in August near 21°C. Spring is next, beginning on September 23, 2026 — 92 days from now.
Spring
Temperatures range from 21 to 30°C. Rainfall is relatively light, with around 133mm over the season and a monthly average of 44mm. Winds are generally light, averaging 3km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 23 to 31°C. Precipitation is moderate at around 162mm for the season, averaging 54mm per month. Winds are generally light, averaging 3km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 23 to 31°C. Rainfall is heavy, totalling around 325mm across the season with a monthly average of 108mm. Winds are generally light, averaging 2km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 21 to 27°C. Rainfall is heavy, totalling around 306mm across the season with a monthly average of 102mm. Winds are generally light, averaging 3km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Marechal Deodoro is during August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 64mm per month. By contrast, March can be uncomfortably hot with temperatures reaching 31°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.
Monthly Climate Data
The table below shows monthly climate averages for Marechal Deodoro based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
